I have purchased a lego UCS X-wing set that does not have the sticker.
I was given a scan image of the sticker. When I printed out the image.. the color on the paper does not match the scan image. The grey color in the image became light green on paper.

If your inks are all full, you might just need a better printer, or the color balance on your monitor might be off. It's pretty challenging to get the colors on your screen to match well with the colors out of your printer._________________